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International Congress on Environmental Modelling and Software

Conference

2018

Precipitation

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An Overview Of Rainfall-Runoff Model Types, Jan Sitterson, Chris Knightes, Rajbir Parmar, Kurt Wolfe, Brian Avant, Muluken Muche Jun 2018

An Overview Of Rainfall-Runoff Model Types, Jan Sitterson, Chris Knightes, Rajbir Parmar, Kurt Wolfe, Brian Avant, Muluken Muche

International Congress on Environmental Modelling and Software

This paper aims to inform the audience of the strengths and weaknesses of various rainfall-runoff models. Runoff plays an important role in the hydrological cycle by returning excess precipitation to the oceans and controlling how much water flows into water systems. Water resource managers use runoff data from models to help understand, control, and monitor the quality and quantity of water resources. Access to runoff data can be time consuming and restrictive. The goal of the USEPA’s Hydrologic Micro Service (HMS) project is to develop a collection of interoperable water quantity and quality modeling components that leverage existing internet-based data …


A Survey Of Precipitation Data For Environmental Modeling, Jan Sitterson, Chris Knightes, Rajbir Parmar, Kurt Wolfe, Brian Avant, Deron Smith Jun 2018

A Survey Of Precipitation Data For Environmental Modeling, Jan Sitterson, Chris Knightes, Rajbir Parmar, Kurt Wolfe, Brian Avant, Deron Smith

International Congress on Environmental Modelling and Software

There is always a challenge of obtaining the “best” data to inform environmental models. Here we present different types of available precipitation datasets while detailing temporal and spatial resolution, potential errors in the dataset, and optimal performance scenarios. Our goal is to inform modelers of the various types, resolutions, and sources of precipitation data available for environmental modeling. Precipitation is the main driver in the hydrological cycle and modelers use this information to understand water quality and water availability. Environmental models use observed precipitation information for modeling past or current conditions, while simulated data are used to predict future conditions …


Poster Abstract: Effects Of Precipitation Data Source Selection On Swat Hydrologic Simulation, Muluken E. Muche, Sumathy Sinnthamby, Rajbir Parmar, Christopher D. Knightes, Deron Smith, Kurt Wolfe, Tom Purucker, John M. Johnston Jun 2018

Poster Abstract: Effects Of Precipitation Data Source Selection On Swat Hydrologic Simulation, Muluken E. Muche, Sumathy Sinnthamby, Rajbir Parmar, Christopher D. Knightes, Deron Smith, Kurt Wolfe, Tom Purucker, John M. Johnston

International Congress on Environmental Modelling and Software

Precipitation is one of the major inputs for hydrological modeling and often it is the most important driver in watershed models. Even though precipitation measurements at gages are considered as the most accurate datasets, gages are unable to capture the spatial and temporal variability of precipitation. Interpolated gridded precipitation data sources have become increasingly available as alternatives to ground based measurements that address spatiotemporal issues. However, the use of gridded precipitation sources is limited, mainly due to mismatch of these gridded data to the requirements of models and difficulty in processing. This study uses the U.S. EPA Hydrologic Micro Services …